Astronomical observations and synthesis of ellipsoidal triaxial structures. I. Geometrical considerations.

Details Astronomical observations and synthesis of ellipsoidal triaxial structures. I. Geometrical considerations. Astronomical observations and synthesis of ellipsoidal triaxial structures. I. Geometrical considerations.

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ncimb.113..927s&link_type=abstract

Nuovo Cimento B, Vol. 113B, No. 7, p. 927 - 944

Astronomy and Astrophysics

Astronomy

8

Structure: Spiral Galaxies, Structure: Elliptical Galaxies

Scientific paper

Isophotal analyses developed in recent years (CCD images and numerical mapping techniques) have revealed that triaxial structures are frequently present in bulges of spirals and in elliptical galaxies. In the first case, these non-axisymmetric oval structures have been proposed as the corresponding sources of the energy necessary to maintain the existence of spiral waves and as a mechanism for re-supplying gas in the inner zones of the galaxy to produce regions of star formation. The photometric diagnostic of these triaxial distributions either from a misalignment between the axes of the ellipse projected by the disc and that of the bulge or from the differential twisting of the elliptical bulge isophotes, required different astronomical techniques. The authors present a complete geometric analysis of both, the direct problem: synthesis of these isophotal contours from a bulge ellipsoidal structure, and the inverse one: the diagnostic of the bulge structure from the measured isophotal parameters.

Affiliated with

Also associated with

No associations

Rating

Astronomical observations and synthesis of ellipsoidal triaxial structures. I. Geometrical considerations. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Astronomical observations and synthesis of ellipsoidal triaxial structures. I. Geometrical considerations., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astronomical observations and synthesis of ellipsoidal triaxial structures. I. Geometrical considerations. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1271550